Square mandrel



This application claims the benefit of and priority to U.S. UtilityPatent Application entitled “Improved Milling Machine”, application No.11/062,986 filed Feb. 22, 2005, and U.S. Patent Application entitled“Mill Blank Mandrel”, application No. 10/867,342 filed Jun. 14, 2004.

FIGA. 1 is a perspective view of the square mandrel of the presentinvention;

FIG. 2 is a same perspective view of FIG. 1 wherein the madrel isrotated 90 degrees of the square mandrel of the present invention;

FIG. 3 is a perspective view of the square mandrel of the presentinvention;

FIG. 4 is a perspective view of the square mandrel of the presentinvention;

FIG. 5 is an end view of the square mandrel of the present invention;

FIG. 6 is a front view of the square mandrel of the present invention;

FIG. 7 is a top view of the square mandrel of the present invention;and,

FIG. 8 is a side view of the square mandrel of the present invention.

The broken line showing is for illustrative purposes only and forms nopart of the claimed design.

The ornamental design for a square mandrel, as shown and described.